| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pron] [vb past] what had happened | 31 |
|
| 2 | [conj] i [vb past] what had [verb] | 12 |
|
| 3 | [conj] i [vb past] [pron] had happened | 11 |
|
| 4 | [conj] i [vb past] what had [vb pp] | 11 |
|
| 5 | [conj] i [vb past] what [verb] happened | 9 |
|
| 6 | [conj] i [verb] what had happened | 9 |
|
| 7 | [conj] i [vb past] what [vb past] happened | 9 |
|
| 8 | [conj] i [vb past] what had happen | 9 |
|
| 9 | [conj] i [vb past] what have happened | 9 |
|
